There different types of content that you can add to your projects. You can find a control panel at the top right of your projects to create any of these:
Tasks: These are the things you need help with. Be as specific as possible so people can decide whether they can help you with them. you can also change the status of any task
Events: If you want to schedule a one-off or a repeated schedule for meetups you can use this content type
Images: Usually great to show people some og the work you have been doing